Answer: B. Growth of an organized labor movement
Explanation: The excerpt describes the photograph taken by Marcus Ormsbee in 1865 which shows the differences between various craft workers and the emergence of large enterprises in New York. The class differences between the workers are marked in their features, with the small shop and large enterprise converging. The conditions described in the excerpt indicate the unequal distribution of wealth and power between the workers, which could have led to the growth of an organized labor movement. The growth of organized labor would have been a response to the conditions described in the excerpt, where workers were seeking better wages, working conditions, and benefits.